HIGH
Heap-based buffer overflow in dns.cpp in InspIRCd 2.0.5 might allow remote attackers to execute arbitrary code via a crafted DNS query that uses compression
Published Mar 22, 2012
7.5
HIGHCVSS 2.0
EPSS 6.82%
Description
Heap-based buffer overflow in dns.cpp in InspIRCd 2.0.5 might allow remote attackers to execute arbitrary code via a crafted DNS query that uses compression.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
7.5 HIGH NVD
AV:N/AC:L/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
6.82% 0.06819
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.06819
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (15 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 6.82% (0.06819) | 93.82th | v5 (v2026.06.15) |
| Jun 15, 2026 | 6.90% (0.06896) | 93.22th | v5 (v2026.06.15) |
| Feb 11, 2026 | 6.35% (0.06354) | 90.77th | v4 (v2025.03.14) |
| Mar 30, 2025 | 7.42% (0.07419) | 90.89th | v4 (v2025.03.14) |
| Mar 29, 2025 | 10.14% (0.10137) | 88.42th | v4 (v2025.03.14) |
| Mar 17, 2025 | 8.35% (0.08347) | 91.67th | v4 (v2025.03.14) |
| Dec 17, 2024 | 9.81% (0.09815) | 94.84th | v3 (v2023.03.01) |
| Sep 20, 2024 | 16.56% (0.16559) | 96.10th | v3 (v2023.03.01) |
| Apr 10, 2024 | 15.40% (0.15398) | 95.79th | v3 (v2023.03.01) |
| Dec 19, 2023 | 17.97% (0.17972) | 95.69th | v3 (v2023.03.01) |
| Aug 17, 2023 | 13.54% (0.13536) | 94.89th | v3 (v2023.03.01) |
| Mar 7, 2023 | 14.05% (0.14053) | 94.76th | v3 (v2023.03.01) |
| Mar 6, 2023 | 7.78% (0.07777) | 93.24th | v2 (v2022.01.01) |
| Apr 1, 2022 | 7.78% (0.07777) | 92.60th | v2 (v2022.01.01) |
| Feb 4, 2022 | 7.78% (0.07777) | 81.54th | v2 (v2022.01.01) |
Weaknesses (1)
References (7)
- http://osvdb.org/80263 vdb-entryx_refsource_OSVDB
- http://secunia.com/advisories/48474 third-party-advisoryx_refsource_SECUNIA
- http://www.debian.org/security/2012/dsa-2448 vendor-advisoryx_refsource_DEBIAN
- http://www.kb.cert.org/vuls/id/212651 third-party-advisoryx_refsource_CERT-VNPatchUS Government Resource
- http://www.securityfocus.com/bid/52561 vdb-entryx_refsource_BID
- https://exchange.xforce.ibmcloud.com/vulnerabilities/74157 vdb-entryx_refsource_XF
- https://github.com/inspircd/inspircd/commit/fe7dbd2c104c37f6f3af7d9f1646a3c332aea4a4 x_refsource_CONFIRMExploitPatch
| Link | Providers | Tags |
|---|---|---|
| http://osvdb.org/80263 | vdb-entryx_refsource_OSVDB | |
| http://secunia.com/advisories/48474 | third-party-advisoryx_refsource_SECUNIA | |
| http://www.debian.org/security/2012/dsa-2448 | vendor-advisoryx_refsource_DEBIAN | |
| http://www.kb.cert.org/vuls/id/212651 | third-party-advisoryx_refsource_CERT-VNPatchUS Government Resource | |
| http://www.securityfocus.com/bid/52561 | vdb-entryx_refsource_BID | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/74157 | vdb-entryx_refsource_XF | |
| https://github.com/inspircd/inspircd/commit/fe7dbd2c104c37f6f3af7d9f1646a3c332aea4a4 | x_refsource_CONFIRMExploitPatch |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Mar 22, 2012
Updated Aug 6, 2024
Reserved Mar 21, 2012
Link CVE-2012-1836
CISA Vulnrichment
Updated n/a